I should do my own...I currently have PIAA Xtreme White H4 stock wattage in my Civic. I also have a few sets (some new, some used) of PIAAs lying around: pair of PIAA Super White, pair of PIAA Platinum Spark (4000K), pair of PIAA Super Plasma GT, pair of PIAA Xtreme Force, pair of Cool Blue 9003, pair of GE Super Blue, pair of PIAA Super Plasma, pair of Koito Whitebeam from my dad's car, and a pair of Lumiko H4s.

Interestingly, the Lumiko's coating is the same color and thickness as the Xtreme Force. The Lumiko has a silver cap, the Xtreme Force has a blue cap. I put one of each in my sis' CRV, and the Xtreme Force is noticeably whiter.